The action of sneaking out of your house with all your friends when your parents think you're upstairs having a party and participating in a scavenger hunt around town.
This term is taken from the 2004 teen movie Sleepover starring Alexa Vega.
EXAMPLE:

Hayden: "What should we do for your birthday party?"

Julie: "Let's pull a sleepover!"
by Isabella Morrigan July 3, 2009
Get the pull a sleepover mug.
Two friends who get along well when left alone (Ex. At a sleepover) but once they return to a more public setting with other friends or relatives (Ex. At school) they become distant or lose touch with each other.
"Hey Jayden are you and Ashley close?" "Me and Ashley? No we're just sleepover friends."
by Vixxet June 5, 2020
Get the Sleepover Friends mug.
A Carlisle Sleepover is most commonly held by males in their teens and early twenties, where usually just the one mate is invited to stay overnight at the bedroom of another mate. The two usually start off smoking weed, drinking cheap cider, listening to hip-hop & happy hardcore and talking shite. As the night goes on their homoerotic urges set in and one finds an excuse to take his shirt off, being 'hot' is a good example. As the sexual tension goes underway the two end up sat on the bed, bollock naked with a couple of humming erections. Both glaring with a passion at their mate's throbbing hard-on, yet are too nervous and shy to make the first move.
I have just realised why Gaz and Darren are so awkward round each other lately, Gaz stayed over at Darren's the other night. I bet it was a Carlisle Sleepover!
by fern croft September 3, 2012
Get the Carlisle Sleepover mug.
when you’re a lesbian/bi girl and have a crush on your straight girl friend
Sleepover by Hayley Kiyoko was my jam, but ever since I’ve developed sleepover syndrome that song just makes me sad and gay.
by ted evelyn mosby December 18, 2017
Get the sleepover syndrome mug.
When someone is feeling down, so you write on there facebook wall, "Naked Sleepover?" to make them feel better ! but you dont really wanna have one, bc hes your bestfriend.
Dayle - "Naked Sleepover?"
Randy - " yess.. "
Dayle - "about thatt........"
by Dougiedd December 10, 2010
Get the Naked Sleepover mug.
A large sleepover involving activities such as nail-painting, pillow fights, dresing up, truth or dare, brushing each other's hair, or taking copious amounts of pictures to post on myspace
Amber: hey Becky, its saturday night. What should we do?
Becky: Come on Amber, what do all pre-teen girls from the suburbs do on a saturday night?
Amber and Becky (excitedly): SLEEPOVER FANTASMICA!!!
by charcharface April 24, 2009
Get the sleepover fantasmica mug.